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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.analysis;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.SerializationConstant;
/** A {@link TransitiveInfoProvider} that creates extra actions. */
@Immutable
public final class ExtraActionArtifactsProvider implements TransitiveInfoProvider {
@SerializationConstant
public static final ExtraActionArtifactsProvider EMPTY =
new ExtraActionArtifactsProvider(
NestedSetBuilder.emptySet(Order.STABLE_ORDER),
NestedSetBuilder.emptySet(Order.STABLE_ORDER));
public static ExtraActionArtifactsProvider create(
NestedSet<Artifact.DerivedArtifact> extraActionArtifacts,
NestedSet<Artifact.DerivedArtifact> transitiveExtraActionArtifacts) {
if (extraActionArtifacts.isEmpty() && transitiveExtraActionArtifacts.isEmpty()) {
return EMPTY;
}
return new ExtraActionArtifactsProvider(extraActionArtifacts, transitiveExtraActionArtifacts);
}
public static ExtraActionArtifactsProvider merge(
Iterable<ExtraActionArtifactsProvider> providers) {
NestedSetBuilder<Artifact.DerivedArtifact> artifacts = NestedSetBuilder.stableOrder();
NestedSetBuilder<Artifact.DerivedArtifact> transitiveExtraActionArtifacts =
NestedSetBuilder.stableOrder();
for (ExtraActionArtifactsProvider provider : providers) {
artifacts.addTransitive(provider.getExtraActionArtifacts());
transitiveExtraActionArtifacts.addTransitive(provider.getTransitiveExtraActionArtifacts());
}
return ExtraActionArtifactsProvider.create(
artifacts.build(), transitiveExtraActionArtifacts.build());
}
/** The outputs of the extra actions associated with this target. */
private final NestedSet<Artifact.DerivedArtifact> extraActionArtifacts;
private final NestedSet<Artifact.DerivedArtifact> transitiveExtraActionArtifacts;
/** Use {@link #create} instead. */
private ExtraActionArtifactsProvider(
NestedSet<Artifact.DerivedArtifact> extraActionArtifacts,
NestedSet<Artifact.DerivedArtifact> transitiveExtraActionArtifacts) {
this.extraActionArtifacts = extraActionArtifacts;
this.transitiveExtraActionArtifacts = transitiveExtraActionArtifacts;
}
/** The outputs of the extra actions associated with this target. */
public NestedSet<Artifact.DerivedArtifact> getExtraActionArtifacts() {
return extraActionArtifacts;
}
/** The outputs of the extra actions in the whole transitive closure. */
public NestedSet<Artifact.DerivedArtifact> getTransitiveExtraActionArtifacts() {
return transitiveExtraActionArtifacts;
}
}